abstract61
Paper
Dalton Trans., 2004, 2786 – 2799, DOI: 10.1039/B406422D
Exo–-bonding to an ortho-carborane hypercarbon atom: systematic icosahedral cage distortions reflected in the structures of the fluoro-, hydroxy- and amino-carboranes, 1-X-2-Ph-1,2-C2B10H10 (X = F, OH or NH2) and related anions
Lynn A. Boyd, William Clegg, Royston C. B. Copley, Matthew G. Davidson, Mark A. Fox, Thomas G. Hibbert, Judith A. K. Howard, Angus Mackinnon, Richard J. Peace and Kenneth Wade
The structures of derivatives of phenyl-ortho-carborane bearing on the second cage hypercarbon atom a -donor substituent (F, OH, O–, NH2, NH– and CH2–) were investigated by NMR, X-ray crystallography and computational studies. The molecular structures of these compounds, notably their cage C1–C2 distances and the orientations of their -donor substituents (OH, NH2, NH– and CH2–) show remarkable and systematic variations with the degree of exo-bonding, which varies as expected with the -donor characteristics of the substituent.
